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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 172 · 40 questions
TalentJR

The fast method (Count the places): Forget the points and multiply the whole numbers: 2.5 × 1.4 → 25 × 14 = 350. Count the decimal places in both numbers: 1 + 1 = 2. Put the point that many places from the right: 3.50 — then drop the 0 at the end: 3.5.

NameDateTime takenScore ___ / 40
  1. 1.7.2 × 0.3 =
  2. 2.0.13 × 2.8 =
  3. 3.0.41 × 1.1 =
  4. 4.0.78 × 2.3 =
  5. 5.2.6 × 0.25 =
  6. 6.0.84 × 2.8 =
  7. 7.0.16 × 0.3 =
  8. 8.1.1 × 3.7 =
  9. 9.2.2 × 0.11 =
  10. 10.0.98 × 0.2 =
  11. 11.0.06 × 2.1 =
  12. 12.9.1 × 2.6 =
  13. 13.0.3 × 0.6 =
  14. 14.0.58 × 1.8 =
  15. 15.5.6 × 0.08 =
  16. 16.7.5 × 1.6 =
  17. 17.8.6 × 0.09 =
  18. 18.4.3 × 2.4 =
  19. 19.0.81 × 2.4 =
  20. 20.0.76 × 0.8 =
  21. 21.0.17 × 3.3 =
  22. 22.0.57 × 2.3 =
  23. 23.6.5 × 0.05 =
  24. 24.1.3 × 3.4 =
  25. 25.2.9 × 0.15 =
  26. 26.0.55 × 3.8 =
  27. 27.0.65 × 1.5 =
  28. 28.2.6 × 3.5 =
  29. 29.1.3 × 0.28 =
  30. 30.0.13 × 1.5 =
  31. 31.0.67 × 1.1 =
  32. 32.0.78 × 3.6 =
  33. 33.7.9 × 0.35 =
  34. 34.0.71 × 3.8 =
  35. 35.2.7 × 0.8 =
  36. 36.0.5 × 0.23 =
  37. 37.0.09 × 2.4 =
  38. 38.4.9 × 1.3 =
  39. 39.0.57 × 1.1 =
  40. 40.5.8 × 0.4 =

Answer key

  1. 2.16
  2. 0.364
  3. 0.451
  4. 1.794
  5. 0.65
  6. 2.352
  7. 0.048
  8. 4.07
  9. 0.242
  10. 0.196
  11. 0.126
  12. 23.66
  13. 0.18
  14. 1.044
  15. 0.448
  16. 12
  17. 0.774
  18. 10.32
  19. 1.944
  20. 0.608
  21. 0.561
  22. 1.311
  23. 0.325
  24. 4.42
  25. 0.435
  26. 2.09
  27. 0.975
  28. 9.1
  29. 0.364
  30. 0.195
  31. 0.737
  32. 2.808
  33. 2.765
  34. 2.698
  35. 2.16
  36. 0.115
  37. 0.216
  38. 6.37
  39. 0.627
  40. 2.32

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